Sports Network

CHICAGO - Two-time American League MVP Frank Thomas, who announced his retirement last winter, will rejoin the Chicago White Sox as a team ambassador.

Thomas, who played 19 seasons in the majors, will have his uniform No. 35 retired by the White Sox on August 29.

In his new role, Thomas will make appearances on behalf of the White Sox and will serve as a team representative in the community and in the majors.

“Frank Thomas is one of the greatest offensive players in Major League Baseball history and, without question, one of the greatest players in our franchise’s long history,” said White Sox chairman Jerry Reinsdorf. “It is with great pleasure that we formally welcome Frank back to the White Sox family.”

Thomas, who will become eligible for the Baseball Hall of Fame in 2014, had a contentious relationship with the White Sox after the team bought out the option on his contract. That came after the 2005 season when the White Sox won the World Series. That prompted White Sox general manager Ken Williams to call Thomas “an idiot” and “selfish.”

A five-time All-Star and four-time Silver Slugger Award winner, Thomas spent 16 seasons with the White Sox (1990-2005) before finishing up in Toronto and Oakland. He won back-to-back AL MVP honors in 1993 and ’94.